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Staff information

Sutanay Choudhury

Data Analytics
Pacific Northwest National Laboratory
PO Box 999
MSIN: J4-33
Richland, WA 99352


Sutanay Choudhury is a Data Scientist in the Computational Science and Mathematics Division at the Pacific Northwest National Laboratory (PNNL).

Research Interests

  • Graph databases, Streaming Algorithms, Text Analytics

Education and Credentials

  • Ph.D, Computer Science, "Subgraph Search on Dynamic Graphs", Washington State University, USA (
  • M.S., Electrical Engineering, Colorado State University, USA
  • B.E., Electrical Engineering, Jadavpur University, India

Awards and Recognitions

  • Outstanding Graduate Student Award, School of Electrical Engineering and Computer Science, Washington State University 2014

PNNL Publications


  • Chen PY, S Choudhury, and A Hero. 2016. "Multi-Centrality Graph Spectral Decompositions and Their Application to Cyber Intrusion Detection." In IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), March 20-25, 2016, Shanghai, China, pp. 4553-4557.  PISCATAWAY, NJ.  doi:10.1109/ICASSP.2016.7472539
  • Zhang B, S Choudhury, M Al-Hasan, X Ning, K Agarwal, S Purohit, and P Pesantez. 2016. "Trust from the past: Bayesian Personalized Ranking based Link Prediction in Knowledge Graphs." In Third Workshop on Mining Networks and Graphs: A Big Data Analytic Challenge (MNG 2016), May 7, 2016, Miami, Florida.  Society for Industrial and Applied Mathematics (SIAM), Philadelphia, PA. 


  • Rodriguez LR, DS Curtis, S Choudhury, KJ Oler, PL Nordquist, PY Chen, and I Ray. 2015. "DEMO: Action Recommendation for Cyber Resilience." In Proceedings of the 22nd ACM SIGSAC Conference on Computer and Communications Security (CCS 2015), October 12-16, 2015, Denver, Colorado, pp. 1620-1622.  ACM , New York, NY.  doi:10.1145/2810103.2810104
  • Choudhury S, LR Rodriguez, DS Curtis, KJ Oler, PL Nordquist, PY Chen, and I Ray. 2015. "Action Recommendation for Cyber Resilience." In Proceedings of the 2015 Workshop on Automated Decision Making for Active Cyber Defense (SafeConfig 2015), October 12-16, 2015, Denver, Colorado, pp. 3-8.  ACM , New York, NY.  doi:10.1145/2809826.2809837
  • Choudhury S, L Holder, G Chin, Jr, K Agarwal, and JT Feo. 2015. "A Selectivity based approach to Continuous Pattern Detection in Streaming Graphs." In Proceedings of the 18th International Conference on Extending Database Technology (EDBT), March 23-27, 2015, Brussels, Belgium, pp. 157-168., Konstanz, Germany.  doi:10.5441/002/edbt.2015.15


  • Morari A, VG Castellana, O Villa, A Tumeo, JR Weaver, DJ Haglin, S Choudhury, and JT Feo. 2014. "Scaling Semantic Graph Databases in Size and Performance." IEEE Micro 34(4):16-26.  doi:10.1109/MM.2014.39
  • Chin G, Jr, S Choudhury, JT Feo, and L Holder. 2014. "Predicting and Detecting Emerging Cyberattack Patterns Using StreamWorks." In CISR '14 Proceedings of the 9th Annual Cyber and Information Security Research Conference, pp. 93-96.  A.C.M., New York, NY.  doi:10.1145/2602087.2602111
  • Lieberman M, S Choudhury, M Hughes, D Patrone, S Hider, C Piatko, M Chapman, JP Marple, and D Silberberg. 2014. "Parasol: An Architecture for Cross-Cloud Federated Graph Querying." In Proceedings of Workshop on Data Analytics in the Cloud (DanaC'14), June 22-27, 2014, Snowbird, Utah, pp. 1-4.  Association for Computing Machinery, New York, NY.  doi:10.1145/2627770.2627771
  • Lu H, A Kalyanaraman, M Halappanavar, and S Choudhury. 2014. "Parallel Heuristics for Scalable Community Detection." In 28th IEEE International Parallel & Distributed Processing Symposium Workshops (IPDPS 2014), May 19-23, 2014, Phoenix, Arizona, pp. 1374-1385.  IEEE Computer Society, Los Alamitos, CA. 
  • Ray A, L Holder, and S Choudhury. 2014. "Frequent Subgraph Discovery in Large Attributed Streaming Graphs." In Proceedings of the 3rd International Workshop on Big Data, Streams and Heterogeneous Source Mining: Algorithms, Systems, Programming Models and Applications (BIGMINE 2014), August 24, 2014, vol. 36, pp. 166-181.  Journal of Machine Learning Research, New York. 
  • Weaver JR, VG Castellana, A Morari, A Tumeo, S Purohit, AR Chappell, DJ Haglin, O Villa, S Choudhury, KL Schuchardt, and JT Feo. 2014. "Toward a Data Scalable Solution for Facilitating Discovery of Science Resources." Parallel Computing 40(10):682-696.  doi:10.1016/j.parco.2014.08.002


  • Hogan EA, PSY Hui, S Choudhury, M Halappanavar, KJ Oler, and CA Joslyn. 2013. "Towards a Multiscale Approach to Cybersecurity Modeling." In IEEE International Conference on Technologies for Homeland Security (HST 2013), November 12-14, 2013, Waltham, MA, pp. 80-85.  IEEE, Piscataway, NJ.  doi:10.1109/THS.2013.6698980
  • Chappell AR, S Choudhury, JT Feo, DJ Haglin, A Morari, S Purohit, KL Schuchardt, A Tumeo, JR Weaver, and O Villa. 2013. "Toward a Data Scalable Solution for Facilitating Discovery of Scientific Data Resources." In DISCS-2013: Proceedings of the International Workshop on Data-Intensive Scalable Computing Systems, November 18, 2013, Denver, CO, pp. 55-60.  Association for Computing Machinery , New York, NY.  doi:10.1145/2534645.2534655
  • Choudhury S, L Holder, G Chin, Jr, A Ray, SJ Beus, and JT Feo. 2013. "StreamWorks - A system for Dynamic Graph Search." In Proceedings of the 2013 ACM SIGMOD International Conference on Management of Data (SIGMOD 2013), June 22-27, 2013, New York, pp. 1101-1104.  ACM, New York, NY.  doi:10.1145/2463676.2463697
  • Choudhury S, L Holder, G Chin, Jr, and JT Feo. 2013. "Fast Search for Dynamic Multi-Relational Graphs." In ACM SIGMOD Workshop on Dynamic Networks Management and Mining (DyNetMM 2013), June 22-27, 2013, New York, pp. 1-8.  Association for Computing Machinery (ACM), New York, NY.  doi:10.1145/2489247.2489251
  • Halappanavar M, S Choudhury, EA Hogan, PSY Hui, JR Johnson, III, I Ray, and LB Holder. 2013. "Towards A Network-of-Networks Framework for Cyber Security." In IEEE Intelligence and Security Informatics, June 4-7, 2013, Seattle, Washington, pp. 106-108.  Institute of Electrical and Electronics Engineers, Piscataway, NJ.  doi:10.1109/ISI.2013.6578796


  • Bell EB, SJ Rose, and S Choudhury. 2012. Text Analysis CapabilityPNNL-21871, Pacific Northwest National Laboratory, Richland, WA. 
  • Chin G, Jr, A Marquez, S Choudhury, and JT Feo. 2012. "Scalable Triadic Analysis of Large-Scale Graphs: Multi-Core vs. Multi-Processor vs. Multi-Threaded Shared Memory Architectures." In Proceedings of the 2012 IEEE 24th International Symposium on Computer Architecture and High Performance Computing, (SBAC-PAD) October 24-26, 2012, New York, NY, pp. 163-170.  IEEE Computer Society, Los Alamitos, CA.  doi:10.1109/SBAC-PAD.2012.39


  • Chin G, Jr, S Choudhury, LJ Kangas, SA McFarlane, and A Marquez. 2011. "Evaluating In-Clique and Topological Parallelism Strategies for Junction Tree-Based Bayesian Inference Algorithm on the Cray XMT." In Proceedings of the IEEE International Symposium on Parallel and Distributed Processing Workshops and Phd Forum (IPDPSW 2011), May 16-20, 2011, Anchorage, Alaska, pp. 1710-1719.  IEEE, Piscataway, NJ.  doi:10.1109/IPDPS.2011.328
  • Choudhury S, L Holder, G Chin, Jr, and JT Feo. 2011. "Large-Scale Continuous Subgraph Queries on Streams." In Proceedings of the 1st Annual Workshop on High-Performance Computing Meets Databases (HPCBD 2011), November 12-18, 2011, Seattle, Washington, pp. 29-32.  Association for Computing Machinery (ACM), New York.  doi:10.1145/2125636.2125647


  • Chin G, Jr, S Choudhury, LJ Kangas, SA McFarlane, and A Marquez. 2010. "Fault Detection in Distributed Climate Sensor Networks using Dynamic Bayesian Networks." In Proceedings of the 6th IEEE International Conference on e-Science (e-Science 2010), December 7-10, 2010, Brisbane, Australia, pp. 121-128.  IEEE Computer Society, Los Alamitos, CA.  doi:10.1109/eScience.2010.22
  • Shah AR, JN Adkins, DJ Baxter, WR Cannon, D Chavarría-Miranda, S Choudhury, I Gorton, DK Gracio, TD Halter, N Jaitly, JR Johnson, RT Kouzes, MC Macduff, A Marquez, ME Monroe, CS Oehmen, WA Pike, C Scherrer, O Villa, BJM Webb-Robertson, PD Whitney, and N Zuljevic. 2010. "Applications in Data-Intensive Computing." In Advances in Computers, vol. 79, ed. M Zelkowitz, pp. 1-70.  Academic Press Inc., San Diego, CA. 


  • Chin G, Jr, A Marquez, S Choudhury, and K Maschhoff. 2009. "Implementing and Evaluating Multithreaded Triad Census Algorithms on the Cray XMT." In IEEE International Symposium on Parallel & Distributed Processing (IPDPS 2009), May 25-29, Rome, Italy.  IEEE, Piscataway, NJ.  doi:10.1109/IPDPS.2009.5161109


  • Choudhury S, and V Chandrasekar. 2007. "Wideband Reception and Processing for Dual-Polarization Radars with Dual Transmitters." Journal of Atmospheric and Oceanic Technology 24(1):95-101. 

Selected Publications


  • An open source implementation of PakBus™ protocol. S. Choudhury and M. Macduff, "Linux based software for data collection from Campbell Data Loggers" - Invention Report, 15895-E, 2008.

Computing Research


Seminar Series

Science at PNNL

Computing Research

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